Finding the Fourth Proportional to 3,879,365.53, 5,353,690.53 and 2,160,486.05
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Solution
The fourth proportional to 3,879,365.53, 5,353,690.53 and 2,160,486.05 is: 2,981,563.24
Step by Step Solution
- Step 1: Write the proportion equation
3,879,365.53 : 5,353,690.53 = 2,160,486.05 : x - Step 2: Convert to fraction form
3,879,365.53/5,353,690.53 = 2,160,486.05/x - Step 3: Cross multiply
3,879,365.53x = 5,353,690.53 × 2,160,486.05 - Step 4: Simplify right side
3,879,365.53x = 11,566,573,668,511.22 - Step 5: Solve for x
x = 11,566,573,668,511.22/3,879,365.53 - Step 6: Final answer
x = 2,981,563.24
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.